"Welcome to the the 50th Ministry Ball" Was the sign you saw as you entered the hall in the in the Ministry of Magic it's the 5th time that you attended this ball as an Auror

you bumbed into someone familiar Oh Tom, sorry I didn't say you

he looked down at you Watch out next time

you nodded and got past him

at that time you didn't know he was the Death Eater, you hunted for 2 years now you got to your Auror Partner, Draco Malfoy, who was standing on the side with his wife